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Pregled bibliografske jedinice broj: 257609

Časopis

Autori: Borčić, Josipa; Anić, Ivica; Smojver, Ivica; Ćatić, Amir; Miletić, Ivana; Pezelj Ribarić, Sonja
Naslov: 3D finite element model and cervical lesion formation in normal occlusion and in malocclusion
Izvornik: Journal of Oral Rehabilitation (0305-182X) 32 (2005); 504-510
Vrsta rada: članak
Ključne riječi: 3D FEA; cervical lesion; stress; strain
Sažetak:
The aim of this study was to develop a three-dimensional (3D) finite element model (FEM) of the first maxillary premolar in order to compare the stress profiles in the buccal and palatal cervical regions. The 3D geometry of the tooth was reconstructed, the solid model was transferred into a finite element program where a 3D mesh was created, and the stress distribution analysis was performed. Two typical cases have been considered: the tooth under normal occlusion (case I) and the tooth under malocclusion (case II). In case I, larger compressive stresses were found in the cervical enamel and dentine. Tensile stresses were found in the fissure system, adjacent area, and at the vestibular surface of the buccal cusp. The peak values for the principal stress ranged from -259 to +2.25 MPa in the cervical areas. In the case II, larger compressive stresses were found in the palato-cervical enamel and dentine. Tensile stresses were found inside the enamel in the fissure system, adjacent area, at the vestibular surface of the buccal cusp, and in the bucco-cervical enamel. The peak values for the principal stress ranged from -501.947 MPa in palatal region to +82.4 MPa in the buccal region This study implies a role of occlusal forces in development of non-carious lesions. In the case of malocclusion, tensile stresses generated on the cervical areas were higher compared with the stresses generated in the case of normal occlusion and it is probably capable of producing non-carious cervical lesion.
Projekt / tema: 0065015, 0062058, 0065999
Izvorni jezik: ENG
Rad je citiran u
bazama podataka:
Web of Science: Science Citation
Current Contents Citation Index
MEDLINE
Web of Science: Science Citation Index Expanded
Scopus
Kategorija: Znanstveni
Znanstvena područja:
Strojarstvo,Dentalna medicina
URL cjelovitog teksta:
Google Scholar: 3D finite element model and cervical lesion formation in normal occlusion and in malocclusion



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